ZOOMARBLE

Siblings in a new, gleefully bizarre city have the chance to protect Earth from an interplanetary threat in Swetnam’s debut and SF series launch.

Clarissa and Joey Straw know right away that the city they’re moving to is a bit offbeat: On the train ride into Fennario, the teen and her little brother meet Cleocatra, a talking cat. She’s definitely someone they’ll need to talk to, since Cleo is in charge of Fennario,and her banning of ribbons prohibits the kids’ seamstress mother from opening her new shop. Cleo’s willing to lift that ban, provided Clarissa and Joey complete a mission to “deal” with The Mostly Monster. This is actually the first of several tasks Cleo assigns the siblings, who mingle with the likes of Donnie the Dogicorn and a spaceship-piloting, trench coat–donning figure called the Medic. Something big is underway: Cleo and others are trying to stop nefarious aliens from attacking Earth. The siblings join this undaunted group, whose plan for safeguarding their planet entails a lot of precision and trickery. Swetnam’s deliberately nonsensical plot drops Clarissa and Joey into perplexing circumstances as they endeavor to fulfill their tasks’ rather odd purposes. This opening installment initiates a story with nominal character development, with Cleo overtly listing the siblings’ individual traits. Still, the abundance of silliness on display is great fun, from the zany cast (including magic pirates and the Clown Collective) to characters impulsively naming things (like dubbing an essential planet Fuzzybutt or the evil aliens Filthbuckets). The narrative gradually sharpens its focus once everyone works together to protect Earth; the settings alternate between earthly regions and outer space. Swetnam wisely opts for simplicity in many descriptions, as in the case of The Mostly Monster, who’s primarily huge and clawed. (“The beast stood upright and wrapped his large clawed hand entirely around the wolf’s head and popped it off like he was pulling the petal from a flower.”) A spaceship’s interior resembles that of a private jet’s. Mysteries surrounding the peculiar city of Fennario and the Straw family will surely be expanded upon in sequels.

A wholeheartedly charming cast steers this witty and preposterous SF comedy.